On Wed, Sep 30, 2020 at 07:33:38AM -0700, Dave Hansen wrote: > On 9/30/20 7:20 AM, Jarkko Sakkinen wrote: > > I'm not expert on Spectre, or any sort of security researcher, but I've > > read a few papers about and understand the general concept. With the > > constraints how the callback is used in practice, I'd *guess* it is > > fine to drop retpoline but I really need some feedback on this from > > people who understand these attacks better. > > Do you recall why you added it in the first place? What was the > motivation for it? Were you responding to a review comment? Absolutely cannot recall it :-) I even cannot recall the exact time when we landed the vDSO in the first place. Too much stuff has happend during the long three year upstreaming cycle. I will try to backtrack this info. /Jarkko
